User Review: Petzl Dart
I love these crampons, mono-point is the way to go! Only rarely have my feet popped out from underneath me, and they always stick on the first kick.
The only drawback, for me, is the spirlock binding system. It's a great setup, easy to put on, but mine have bent several times, from trying to put them on too tight. That's what i did with my old ones, so.. this system is a bit different.
However, I was putting them on 15-year-old boots, so that may have something to do with it.